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APPLIANCE REPAIR accidental leaks from the pipeline of oil wells
APPLIANCE REPAIR accidental leaks from the pipeline of oil wells
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机译:家电维修油井管道意外泄漏
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摘要
Apparatus eliminate accidental leaks of oil from oil wells pipelines comprising a set of hole oil pipe water supply pipeline into a ball shell (hydraulic valve) of deep water pump unit, characterized in that the oil conduit is muffled when the device has a hydraulic valve therein.
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